When the 5th Generation (5G) cellular network was built, it had the idea to upgrade its capacity, so 6G could use the existing towers and frameworks as opposed to starting from the scratch. Another important consideration must be awareness of the damage we are causing to the planet and since we are trying to slow down the pollution level, 6G might be allowed to use as much energy as 5G would be using.
The rising in data traffic and ever increasing number of connected devices are the main driving forces behind the evolution of the next generation cellular network i.e., 6G [1]}, [2]}. Therefore, we need an informative survey on the basic architecture and technologies of 6G network systems. The key features of the 6G network system are expected to be – extreme low latency, ultra high data rates, high energy efficiency, enhanced security, and ubiquitous network coverage across the globe [3]}. Another prominent objective of the 6G network system is to satisfy the needs and requirements of Internet of Things (IoT) applications and uplift the widespread application and usage of the latest technological trends [4]}. There has been a significant stress on the application of distributed ledger technology, such as blockchain, in the 6G network system as it is capable of providing privacy and security, which are the necessities of the digital world in the era of the Internet [5]}, [6]}.
